Whatever they go with, the tech is going to make a really killer subwoofer amp. Looking at the requirements (mostly the high DC input) it seems that an IGBT cl

Whatever they go with, the tech is going to make a really killer subwoofer amp. Looking at the requirements (mostly the high DC input) it seems that an IGBT class-D would be the logical starting point, but those are hampered by a 150kHz-ish max switching rate. I think Don Lancaster's Magic Sinewaves (http://www.tinaja.com/magsn01.shtml http://www.tinaja.com/magsn01.shtml) meet the distortion requirements while offering the slowest switching requirements. Would be fun to be on one of the teams for this.